who is using the drug? is it separated by age, race, gender, socioeconomic background. >> what we found a large increase in number ofber individuals that have a history after boozing prescription opioid pain medications and become addicted to heroin and seems to affect people under the age of 50-years-old. >> we see this in people in the 18 to 25 and 25 to basicallyy 40-year-old range at the highest rates and it seems to be more prevalent in men. >> would you call this an epp dimic? -- epidemic.. >> i would call prescription abuse an epidemic and rise in heroin use is something that really is not terribly unexpected. >> what happens is that people become addicted -- people who misuse medications havecati vulnerability to become addicted. if they are addicted it is a very expensive habit to maintain prescription heroin opioid medications are expensive. heroin is less expensive.ensi as one is more addicted to the o medicine they need more of the drug. heroin is a good substitute unfortunately. >> and i know w